If you decide you don't want any more of our newsletter emails, you can unsubscribe or update your newsletter preferences and notifications by clicking on the 'Unsubscribe' or 'Update your preferences' links, which are at the bottom left of any email from us.
For example this one:
This will open a new window where you'll need to confirm your choice, either by selecting one of the two email frequency options or selecting unsubscribe. You'll receive confirmation in green once your preference has been registered.
See also: How do I delete my account?